Safety reinforced roof insulation

Abstract

An insulation blanket for the roof of a metal building installed between the roof purlins and roof paneling includes a concealed safety reinforcement of tapes or netting between the insulating material of the blanket and the interior facing thereof. The arrangement enables the reinforced insulation blanket to support the weight of a workman who inadvertently steps on it while installing a roof.

I claim: 
     
       1. A safety reinforced roof insulation particularly for metal building roofs comprising: means for strengthening said roof insulation internally thereof so that it can support a worker who might inadvertently step thereon including;   a layer of thermal insulation, a bottom facing element on and united with said layer, and a safety reinforcement component disposed between said layer and facing and being concealed and forming a permanent integral component of the roof insulation.   
     
     
       2. A safety reinforced roof insulation as defined in claim 1, and said safety reinforcement component comprising a comparatively thin high tensile strength component laminated between said layer and facing. 
     
     
       3. A safety reinforced roof insulation as defined in claim 2, and said high tensile strength component comprising high tensile strength netting. 
     
     
       4. A safety reinforced roof insulation as defined in claim 3, and said netting comprising vinyl netting having approximately one inch square mesh openings. 
     
     
       5. A safety reinforced roof insulation as defined in claim 2, and said high tensile strength component comprising a multiplicity of spaced substantially parallel high tensile strength tapes. 
     
     
       6. A safety reinforced roof insulation as defined in claim 5, and said tapes comprising fiber reinforced tapes spaced equidistantly by a distance of approximately one and one-half inches and each tape being approximately one inch wide. 
     
     
       7. In an insulated roof structure, a plurality of spaced purlins and eave struts on opposite sides of the two endmost purlins, an insulation blanket adapted to be pulled across the roof purlins from eave-to-eave and resting on the tops of the purlins and lapping the outer sides of the eave struts, the insulation blanket comprising a top comparatively thick layer of thermal insulation, a bottom comparatively thin facing of sheet material forming a vapor retarder and being permanently united with said layer of thermal insulation, a comparatively thin safety reinforcement layer permanently enclosed within the insulation blanket and being concealed and being disposed between said facing of sheet material and said layer of thermal insulation, adhesive means attaching said blanket to the tops of at least some of said purlins and to the outer sides of the eave struts, and roof panels installed atop said insulation blanket. 
     
     
       8. In an insulated roof structure as defined in claim 7, and said thick layer of thermal insulation comprising glass fiber insulation, and said safety reinforcement layer comprising a layer of high tensile strength material. 
     
     
       9. In an insulated roof structure as defined in claim 8, and said high tensile strength material comprising netting. 
     
     
       10. In an insulated roof structure as defined in claim 8, and said high tensile strength material comprising plural closely spaced parallel high tensile strength tapes. 
     
     
       11. A flexible safety reinforced insulation blanket particularly for the roofs of metal buildings comprising: means for strengthening said insulation blanket internally thereof whereby the blanket is enabled to support the weight of a worker who inadvertently steps on said blanket including;   an insulation blanket layer, a facing sheet united with the bottom face of the layer, and an internal safety reinforcement of comparatively high tensile strength material permanently built into and concealed within the insulation blanket and spanning substantially the entire area encompassed by the blanket.